Adjustable gas drop-light.



No. 866,777. PATENTED SEPT. 24, 1907.

J. J. DENNIS.

ADJUSTABLE GAS DROP LIGHT. I

APPLICATION FILED NOV. 21, 1905 4, wAsumcrcN, 0. c4

UNITED STATES JOHN J. DENNIS, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO F. W.

PATENT OFFICE.

FULLMER AND F. E. BALL, OF CHICAGO, ILLINOIS.

ADJUSTABLE GAS DROP-LIGHT.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed November 21,1905. Serial No. 288.463.

To all whom it may concern:

Be it known that 1, JOHN J. DENNIS, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Adjustable Gas Drop-Lights; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which i; rm a part of this specification.

Heretofore where gas or hydro-carbon vapor has been used for lighting purposes adjustable drop lights have not been used as it is diflicult to secure gas tight joints where telescoping sectional tubes are used. Gas light is thus frequently at inconvenient height from the user and reflectors are required to concentrate the light where required.

The object of this invention is to enable a flexible gas tube to be employed for drop light purposes and to enable the jet connected in the end of said tube to be supported vertically at any desired height in the length of the tube.

It is also an object of the invention to afford a very cheap and easily adjusted drop light by the use of which the light can be supported at any desired height.

The invention consists in the matters hereinafter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a view in elevation of a 30 gas fixture having connected therewith a drop light embodying my invention. Fig. 2 is an enlarged perspective detail of the bracket arm for the jet. Fig. 3 is a perspective view of the shade and holder therefor. Fig. 4 is an enlarged detail of the tip connection.

As shown in said drawings: A indicates a chandelier of any desired construction or any gas fixture and as shown provided with two gas jets aa on the latter of which is supported an ordinary flexible gas pipe B by means of a goose neck connection I) as is usual. In the opposite lower end of said tube is provided a nipple b threaded to receive the gas jet b Slidably supported on the tube B is an arm O which as shown comprises a relatively thin plate or bar of metal of light weight, one end of which is bent to afford a sleeve 0 which receives said tube and which as shown is set obliquely with the upper edge of said arm and is of a length to bind or cramp on the tube when the opposite end of the arm is pressed downwardly. Said opposite extremity of said bar or arm is twisted and bent to afford a horizontal plate 0 apertured to receive the threaded end of the nipple b which projects therethrough, enabling the outer reduced and apertured end of said arm to be rigidly secured on the end of said tube by the jet when screwed in place on said nipple.

The operation is as follows: Owing to the cramping effect of the sleeve 0 on the tube B the weight of the end of the tube tends to bend or spring the tube slightly as shown in Fig. 1 so that the center of gravity falls approximately at the center of the loop formed between the bight and the upturned end thereon and the weight and curvature of said bar or arm is such that when the jet is supported thereon the burner is held vertically independent of the height of the adjustment. It is for this purpose that the outer reduced end of said arm 0 is arranged obliquely with the axis of the sleeve at the opposite end of said arm, the angle of course depending upon the weight of the arm and the weight to be supported on the outer end of the arm.

If preferred a shade D of any suitable material may be supported on the arm G in position to reflect the light and to protect the cable from the heat. For this purpose the shade is provided at its bottom with an aperture through which extends a wire bent at its middle d to engage the arm G, at its forward end (1 to clasp the arm and at its rear end bent upwardly and provided with a hook d to engage a suitable hook d on the shade. By this construction the shade can be arranged at any angle desired by bending the supporting end of the wire and being supported directly above the center of gravity does not tend to deflect the tip.

Obviously the arm and the shade may be made of any suitable material and in any ornamental shape or form. The arm construction shown however presents a thin vertical edge to avoid obstructing the light.

Obviously details of construction may be varied Without departing from the principles of my invention,

I claim as my invention:

1. The combination with a flexible gas hose adapted to be secured to connect with a gas pipe at one end, of a burner at the other end, a rigid one-piece arm at one end rigidly engaged to the burner at the other adjustably engaging the hose and adjustably supporting the burner on the hose with the tip directed vertically and out of alinement with the hose above the same.

2. The combination with a gas hose adapted for connection with a gas jet of 1 burner on the opposite end thereof and means supporting said burner vertically and out of alinement with all parts of the hose and embracing a curved arm having one end apertured and turned at an angle with the plane of the opposite end to rigidly engage the burner, said opposite end bent to form an integral sleeve to slidably engage the hose at a point laterally of and above the burner.

In a device of the class described the combination with a relatively stiff gas hose of a connection on one end to engage a gas jet, a threaded nipple on the other, a tip threaded thereon, a one piece curved arm shaped to be engaged between the nipple and tip at one end, the other end bent to afford a transversely directed sleeve of a size and adapted to slidably engage the hose slightly above the burner and at a considerable distance laterally thereof.

44 As an article of manufacture, for the purpose specified, a curved rigid arm of comparatively long radius having one end shaped to engage a centrally directed gas jet,

the other end bent to aiford a sleeve to engage a gas hose, 10 the axis of the sleeve being directed radially toward the axis of the jet when in place.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

JOHN J. DENNIS.

Witnesses:

Wu. C. SMITH, W. W. WITHENBURY. 

